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York YLUA Series User Manual

York YLUA Series
52 pages
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70 – 135 TON
245 – 475 kW
R-410A
50 Hz
FORM 150.63-EG4 (1012)
Model YLUA Air-Cooled Scroll Compressor Condensing Units
Style A
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York YLUA Series Specifications

General IconGeneral
BrandYork
ModelYLUA Series
CategoryChiller
LanguageEnglish

Summary

Introduction

Unit Overview and Components

General Unit Description

Describes the unit's construction, materials, and compliance standards.

Compressor Details

Details hermetic scroll compressors, axial/radial sealing, and crankcase heaters.

Condenser Coil and Fan Specifications

Describes condenser coils, fins, fans, blades, and motors for efficient operation.

Microcomputer Control Center Features

Control Panel Display Capabilities

Details the LCD display, lines, characters, and backlight for outdoor viewing.

Control Panel Keypad Functions

Details keypad sections for display, print, entry, and unit settings.

Control Panel Communication Ports

Mentions RS-232 port for print-outs and other communication capabilities.

Microcomputer Control Center Capabilities

Remote Control and Automation Interface

Details remote control via BAS and specific inputs for system integration.

Control System Communication Protocols

Lists native and optional communication protocols like N2, BACnet, Modbus, and LON.

Accessories and Options Overview

Power Connection Options

Lists options for power connections like disconnects, circuit breakers, and transformers.

Control System Options

Lists options for ambient control, BAS interface, and language display.

Compressor and Piping Options

Lists options like Chicago code relief valves and hot gas by-pass.

Condenser Coil and Enclosure Options

Condenser Coil Material Options

Details different condenser coil coatings and materials for corrosive environments.

Unit Enclosure Panel Options

Describes various types of enclosure panels for security and aesthetics.

Selection Data and Guidelines

Refrigerant Selection Rules

Provides rules for selecting units based on ratings and interpolation.

Unit Selection Procedure

Details the process of selecting a unit based on ambient and suction temperatures.

Refrigerant Piping and Sizing

Refrigerant Piping General Guidelines

Covers installation precautions, responsibilities, and system design.

Refrigerant Line Sizing Considerations

Discusses pressure drop, oil return, and velocity for line sizing.

Refrigerant Charge and Verification

Explains initial charge and final adjustment methods.

Refrigerant Line Connections and Notes

Refrigerant Piping Technical Notes

Provides important notes on piping based on conditions and standards.

English Ratings Data

SI Ratings Data

Part Load Ratings by Model

Physical Data and Specifications

Dimension Drawings and Connection Sizes

Spring Isolator Details

Elastomeric Isolator Specifications

Seismic Spring Isolator Details

Isolator Location Diagrams

Electrical Notes and Legends

Important Electrical Installation Notes

Explains MCA, disconnect switch, fuse sizes, and circuit breakers per NEC.

Electrical Terminology Legend

Defines abbreviations used in electrical sections for clarity.

Electrical Data Tables

Electrical Wiring Diagrams

Electrical Drawing Designation Legend and Notes

Electrical Designation Abbreviations

Lists and defines electrical component abbreviations.

Electrical Drawing Interpretation Guidelines

Provides general notes on interpreting electrical drawings and symbols.

Wiring and Option Notes

Application Data and Site Selection

Unit Location Considerations

Guides on selecting suitable outdoor locations for the unit.

Foundation Requirements and Installation

Details requirements for flat, level foundations for ground or roof.

Refrigerant Piping Design Considerations

Discusses sizing for pressure drop, oil return, and vertical rise.

Guide Specifications - Part 1 General

Quality Assurance Standards and Compliance

Lists applicable standards, codes, and certifications for product quality.

Guide Specifications - Part 2 Products

Condensing Unit Materials and Components

Details general requirements for materials, cabinet, and components.

Compressor Specifications and Features

Describes hermetic, scroll-type compressors and their features.

Control System Specifications

Covers general control, enclosure, and center features.

Guide Specifications - Accessories and Options

Power Connection and Distribution

Details power panel construction and supply requirements.

Accessories and Options Overview

Lists standard features and available accessories/options.

Guide Specifications - Options and Execution

Sound Reduction Options

Lists options for reducing fan and compressor noise.

Vibration Isolation Options

Describes isolator types for mounting and vibration control.

Installation Procedures

Covers rigging, location, component installation, and electrical connections.

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